def _BuildComputeSection(instances, private_key_file):
"""Returns a string representing the Compute section that should be added."""
buf = cStringIO.StringIO()
buf.write(_BEGIN_MARKER)
buf.write('\n')
buf.write('#\n')
for line in _HEADER.split('\n'):
buf.write('#')
if line:
buf.write(' ')
buf.write(line)
buf.write('\n')
for instance in instances:
external_ip_address = (
ssh_utils.GetExternalIPAddress(instance, no_raise=True))
if external_ip_address:
buf.write(textwrap.dedent("""\
Host {alias}
HostName {external_ip_address}
IdentityFile {private_key_file}
UserKnownHostsFile=/dev/null
IdentitiesOnly=yes
CheckHostIP=no
StrictHostKeyChecking=no
""".format(alias=_CreateAlias(instance),
external_ip_address=external_ip_address,
private_key_file=private_key_file)))
buf.write(_END_MARKER)
buf.write('\n')
return buf.getvalue()
def Run(self, args):
super(Scp, self).Run(args)
file_specs = []
# Parses the positional arguments.
for arg in args.sources + [args.destination]:
if ssh_utils.IsScpLocalPath(arg):
file_specs.append(LocalFile(arg))
else:
user_host, file_path = arg.split(':', 1)
user_host_parts = user_host.split('@', 1)
if len(user_host_parts) == 1:
user = ssh_utils.GetDefaultSshUsername(warn_on_account_user=True)
instance = user_host_parts[0]
else:
user, instance = user_host_parts
file_specs.append(RemoteFile(user, instance, file_path))
logging.debug('Normalized arguments: %s', file_specs)
# Validates the positional arguments.
# TODO(b/21515495): Look into relaxing these conditions.
sources = file_specs[:-1]
destination = file_specs[-1]
if isinstance(destination, LocalFile):
for source in sources:
if isinstance(source, LocalFile):
raise exceptions.ToolException(
'All sources must be remote files when the destination '
'is local.')
else: # RemoteFile
for source in sources:
if isinstance(source, RemoteFile):
raise exceptions.ToolException(
'All sources must be local files when the destination '
'is remote.')
instances = set()
for file_spec in file_specs:
if isinstance(file_spec, RemoteFile):
instances.add(file_spec.instance_name)
if len(instances) > 1:
raise exceptions.ToolException(
'Copies must involve exactly one virtual machine instance; '
'your invocation refers to [{0}] instances: [{1}].'.format(
len(instances), ', '.join(sorted(instances))))
instance_ref = self.CreateZonalReference(instances.pop(), args.zone)
instance = self.GetInstance(instance_ref)
external_ip_address = ssh_utils.GetExternalIPAddress(instance)
# Builds the scp command.
scp_args = [self.scp_executable]
if not args.plain:
scp_args.extend(self.GetDefaultFlags())
# apply args
if args.quiet:
scp_args.append('-q')
if args.port:
scp_args.extend(['-P', args.port])
if args.recurse:
scp_args.append('-r')
if args.compress:
scp_args.append('-C')
if args.scp_flag:
scp_args.extend(args.scp_flag)
for file_spec in file_specs:
if isinstance(file_spec, LocalFile):
scp_args.append(file_spec.file_path)
else:
scp_args.append('{0}:{1}'.format(
ssh_utils.UserHost(file_spec.user, external_ip_address),
file_spec.file_path))
self.ActuallyRun(args, scp_args, user, instance)
def Run(self, args):
super(SshGA, self).Run(args)
parts = args.user_host.split('@')
if len(parts) == 1:
if self._use_accounts_service: # Using Account Service.
user = gaia_utils.GetDefaultAccountName(self.http)
else: # Uploading keys through metadata.
user = ssh_utils.GetDefaultSshUsername(
warn_on_account_user=True)
instance = parts[0]
elif len(parts) == 2:
user, instance = parts
else:
raise exceptions.ToolException(
'Expected argument of the form [USER@]INSTANCE; received [{0}].'
.format(args.user_host))
instance_ref = instance_flags.SSH_INSTANCE_RESOLVER.ResolveResources(
[instance],
compute_scope.ScopeEnum.ZONE,
args.zone,
self.resources,
scope_lister=flags.GetDefaultScopeLister(self.compute_client,
self.project))[0]
instance = self.GetInstance(instance_ref)
external_ip_address = ssh_utils.GetExternalIPAddress(instance)
ssh_args = [self.ssh_executable]
if not args.plain:
ssh_args.extend(self.GetDefaultFlags())
# Allocates a tty if no command was provided and a container was provided.
if args.container and not args.command:
ssh_args.append('-t')
if args.ssh_flag:
for flag in args.ssh_flag:
for flag_part in flag.split(): # We want grouping here
dereferenced_flag = (flag_part.replace(
'%USER%', user).replace('%INSTANCE%',
external_ip_address))
ssh_args.append(dereferenced_flag)
ssh_args.extend(self.GetHostKeyArgs(args, instance))
ssh_args.append(ssh_utils.UserHost(user, external_ip_address))
if args.ssh_args:
ssh_args.extend(args.ssh_args)
if args.container:
ssh_args.append('--')
ssh_args.append('container_exec')
ssh_args.append(args.container)
# Runs the given command inside the given container if --command was
# specified, otherwise runs /bin/sh.
if args.command:
ssh_args.append(args.command)
else:
ssh_args.append('/bin/sh')
elif args.command:
if not platforms.OperatingSystem.IsWindows():
ssh_args.append('--')
ssh_args.append(args.command)
# Don't use strict error checking for ssh: if the executed command fails, we
# don't want to consider it an error. We do, however, want to propagate its
# return code.
return_code = self.ActuallyRun(
args,
ssh_args,
user,
instance,
instance_ref.project,
strict_error_checking=False,
use_account_service=self._use_accounts_service)
if return_code:
# Can't raise an exception because we don't want any "ERROR" message
# printed; the output from `ssh` will be enough.
sys.exit(return_code)
def Run(self, args):
super(CopyFiles, self).Run(args)
file_specs = []
# Parses the positional arguments.
for arg in args.sources + [args.destination]:
if ssh_utils.IsScpLocalPath(arg):
file_specs.append(LocalFile(arg))
else:
user_host, file_path = arg.split(':', 1)
user_host_parts = user_host.split('@', 1)
if len(user_host_parts) == 1:
user = ssh_utils.GetDefaultSshUsername(
warn_on_account_user=True)
source_instance = user_host_parts[0]
else:
user, source_instance = user_host_parts
file_specs.append(RemoteFile(user, source_instance, file_path))
log.debug('Normalized arguments: %s', file_specs)
# Validates the positional arguments.
# TODO(user): Look into relaxing these conditions.
sources = file_specs[:-1]
destination = file_specs[-1]
if isinstance(destination, LocalFile):
for source in sources:
if isinstance(source, LocalFile):
raise exceptions.ToolException(
'All sources must be remote files when the destination '
'is local.')
else: # RemoteFile
for source in sources:
if isinstance(source, RemoteFile):
raise exceptions.ToolException(
'All sources must be local files when the destination '
'is remote.')
destination_instances = set()
for file_spec in file_specs:
if isinstance(file_spec, RemoteFile):
destination_instances.add(file_spec.instance_name)
if len(destination_instances) > 1:
raise exceptions.ToolException(
'Copies must involve exactly one virtual machine instance; '
'your invocation refers to [{0}] instances: [{1}].'.format(
len(destination_instances),
', '.join(sorted(destination_instances))))
source_instance_ref = instance_flags.SSH_INSTANCE_RESOLVER.ResolveResources(
[source_instance],
flags.ScopeEnum.ZONE,
args.zone,
self.resources,
scope_lister=flags.GetDefaultScopeLister(self.compute_client,
self.project))[0]
source_instance = self.GetInstance(source_instance_ref)
external_ip_address = ssh_utils.GetExternalIPAddress(source_instance)
# Builds the scp command.
scp_args = [self.scp_executable]
if not args.plain:
scp_args.extend(self.GetDefaultFlags())
scp_args.extend(self.GetHostKeyArgs(args, source_instance))
scp_args.append('-r')
for file_spec in file_specs:
if isinstance(file_spec, LocalFile):
scp_args.append(file_spec.file_path)
else:
scp_args.append('{0}:{1}'.format(
ssh_utils.UserHost(file_spec.user, external_ip_address),
file_spec.file_path))
self.ActuallyRun(args, scp_args, user, source_instance,
source_instance_ref.project)
def Run(self, args):
super(CopyFiles, self).Run(args)
file_specs = []
# Parses the positional arguments.
for arg in args.sources + [args.destination]:
# If the argument begins with "./" or "/", then we are dealing
# with a local file that can potentially contain colons, so we
# avoid splitting on colons. The case of remote files containing
# colons is handled below by splitting only on the first colon.
if arg.startswith('./') or arg.startswith('/'):
file_specs.append(LocalFile(arg))
continue
host_file_parts = arg.split(':', 1)
if len(host_file_parts) == 1:
file_specs.append(LocalFile(host_file_parts[0]))
else:
user_host, file_path = host_file_parts
user_host_parts = user_host.split('@', 1)
if len(user_host_parts) == 1:
user = getpass.getuser()
instance = user_host_parts[0]
else:
user, instance = user_host_parts
file_specs.append(RemoteFile(user, instance, file_path))
logging.debug('Normalized arguments: %s', file_specs)
# Validates the positional arguments.
# TODO(user): Look into relaxing these conditions.
sources = file_specs[:-1]
destination = file_specs[-1]
if isinstance(destination, LocalFile):
for source in sources:
if isinstance(source, LocalFile):
raise exceptions.ToolException(
'All sources must be remote files when the destination '
'is local.')
else: # RemoteFile
for source in sources:
if isinstance(source, RemoteFile):
raise exceptions.ToolException(
'All sources must be local files when the destination '
'is remote.')
instances = set()
for file_spec in file_specs:
if isinstance(file_spec, RemoteFile):
instances.add(file_spec.instance_name)
if len(instances) > 1:
raise exceptions.ToolException(
'Copies must involve exactly one virtual machine instance; '
'your invocation refers to [{0}] instances: [{1}].'.format(
len(instances), ', '.join(sorted(instances))))
instance_ref = self.CreateZonalReference(instances.pop(), args.zone)
instance = self.GetInstance(instance_ref)
external_ip_address = ssh_utils.GetExternalIPAddress(instance)
# Builds the scp command.
scp_args = [self.scp_executable]
if not args.plain:
scp_args.extend(self.GetDefaultFlags())
scp_args.append('-r')
for file_spec in file_specs:
if isinstance(file_spec, LocalFile):
scp_args.append(file_spec.file_path)
else:
scp_args.append('{0}:{1}'.format(
ssh_utils.UserHost(file_spec.user, external_ip_address),
file_spec.file_path))
self.ActuallyRun(args, scp_args, user, instance)
